There is a new project out there that will make it possible for anyone to listen to your GSM cellular phone conversations, read SMS message, etc. GSM is very popular; it is used on AT&T, T-Mobile and many others. GSM uses A5/1 encryption which has been known to be vulnerable to attacks for years. Karsten Nohl is simply starting a project that uses these old vulnerabilities to index enough information so anyone can easily decrypt the conversations without knowing the encryption key. Will this light a fire under cellular network designers to make their systems more secure?